CN215472198U

CN215472198U - Graphite head drilling positioning tool

Info

Publication number: CN215472198U
Application number: CN202121287817.3U
Authority: CN
Inventors: 张仕勇; 罗德富
Original assignee: CHENGDU RUNFENG ELECTRICAL CARBON CO LTD
Current assignee: CHENGDU RUNFENG ELECTRICAL CARBON CO LTD
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2022-01-11
Anticipated expiration: 2031-06-09

Abstract

The utility model relates to the technical field of drilling processing, wherein one end of a cylindrical tool body which is horizontally arranged along the axial direction is opened, the outer side wall of the tool body is fixedly arranged on a base, a positioning groove is arranged on the inner bottom surface of the tool body, and a cylindrical surface clamping part for limiting and clamping a cylindrical section of a graphite head is arranged on the inner side wall of the tool body; the cylindrical clamping part is provided with a positioning ring mounting groove for mounting a guiding positioning ring along the circumferential direction of the tool body, the guiding positioning ring is mounted in the positioning ring mounting groove in an embedded manner, and an inner ring of the guiding positioning ring protrudes out of a notch of the positioning ring mounting groove and can be in close contact with the periphery of the cylindrical section of the graphite head; the cylindrical surface clamping part of the tool body is also provided with a guide drilling hole for the radial hole of the graphite head to extend into by a drill bit; the utility model has the advantages of ensuring the drilling precision, avoiding the inclination of the drilled hole, and improving the production efficiency by fast clamping.

Description

Graphite head drilling positioning tool

Technical Field

The utility model relates to the technical field of drilling machining, in particular to a graphite head drilling positioning tool which is used for drilling and machining a radial hole in a graphite head.

Background

As shown in figure 2, the graphite head (3) has a cylindrical section (32) in the middle, two ends of the cylindrical section (32) are respectively a circular truncated cone section (31) with gradually reduced caliber, and the cylindrical section (32) is also provided with a radial hole (321) arranged along the radial direction.

When the graphite head shown in fig. 2 is subjected to radial hole machining (321), a three-jaw chuck is adopted in the traditional machining to position and clamp the graphite head and then a drill is matched for drilling. This processing method: firstly, the positioning of the graphite head is extremely complicated, and the production efficiency is not high; secondly, the positioning part is easy to change which is difficult to distinguish by naked eyes, so that the distance between the radial hole (321) and the two ends is deviated; and thirdly, in the clamping process, the perpendicularity of the central axis of the graphite head (3) and the processing axis of the drill bit cannot be ensured, so that the inclination angle of the radial hole (321) is out of tolerance, and the product quality is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a graphite head drilling positioning tool which can be used for quickly positioning and clamping a graphite head to be processed with a radial hole, effectively ensuring the drilling precision and improving the production efficiency.

The utility model is realized by the following technical scheme:

a graphite head drilling positioning tool comprises a base, a tool body and a guide positioning ring, wherein the tool body and the guide positioning ring are installed on the base; the tool body which is integrally cylindrical is provided with a working cavity which is provided with an opening at one end, is horizontally arranged along the axial direction and is used for positioning the graphite head to be drilled; the inner bottom surface of the tool body working cavity is provided with a positioning groove for positioning the end part of the circular truncated cone section of the graphite head, and the inner side wall of the tool body working cavity is provided with a cylindrical surface clamping part for limiting and clamping the cylindrical section of the graphite head; the cylindrical surface clamping part is provided with a positioning ring mounting groove for mounting a guiding positioning ring in an embedded manner along the circumferential direction of the tool body, and an inner ring of the guiding positioning ring protrudes out of a notch of the positioning ring mounting groove and can be in close contact with the periphery of the cylindrical section of the graphite head; the cylinder clamping part of the tool body is further provided with a guide drilling hole for the drill bit to stretch into for machining the radial hole of the graphite head.

In order to better realize the utility model, the positioning groove is a truncated cone-shaped groove, and the bottom surface of the truncated cone-shaped groove can be attached to the end surface of a truncated cone section of the truncated cone-shaped groove, into which the graphite head extends.

In order to better implement the utility model, further, the wall surface of the truncated cone-shaped groove is in line contact or surface contact with the wall surface of the truncated cone section of the graphite head extending into the truncated cone-shaped groove.

In order to better realize the utility model, further, the cylindrical surface clamping part and the guiding locating ring are respectively provided with locating ring locking holes corresponding to the positions; the guide positioning ring is arranged behind the positioning ring mounting groove, and the fixing bolt penetrates through the positioning ring locking holes which are respectively located on the cylindrical surface clamping portion, the guide positioning ring and correspond to the positions of the guide positioning ring to fixedly connect the guide positioning ring with the middle tool body.

In order to better realize the utility model, the number of the guide positioning rings is two, and the two guide positioning rings are respectively arranged on the front side and the rear side of the guide drilling hole along the axial direction of the working cavity.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

(1) the positioning tool respectively positions and clamps the end face and the cylindrical surface of the circular table section of the graphite head through the positioning groove and the cylindrical surface clamping part, and has the advantages of ensuring drilling precision, avoiding inclination of a drilled hole, and improving production efficiency through quick clamping;

(2) according to the utility model, the positioning groove is shaped into the truncated cone-shaped groove, so that the end face of the truncated cone section of the graphite head can be quickly positioned;

(3) according to the graphite head, the side surface of the truncated cone-shaped groove is in quick line contact or surface contact with the side surface of the truncated cone section of the graphite head, so that the graphite head is prevented from shaking, and the accuracy and stability of end surface positioning are facilitated;

(4) according to the utility model, the positioning ring locking hole and the fixing bolt are arranged, and the guide positioning ring is fixedly arranged in the positioning ring mounting groove, so that the positioning and clamping of the cylindrical section of the graphite head are realized, and the structure is simple, practical and convenient to operate;

(5) according to the utility model, the number of the guide positioning rings is two, and the guide positioning rings are respectively arranged on two sides of the guide drilling hole, so that the stability of positioning and clamping the cylindrical section of the graphite head is improved, and the influence of forced sliding of the graphite head on the drilling precision during drilling is avoided.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale. All of the inventive innovations herein should be considered in the disclosure and the scope of the present invention.

FIG. 1 is a schematic structural view of a graphite head drilling positioning provided by the present invention;

FIG. 2 is a cross-sectional view of the present invention taken along the pilot borehole axis;

FIG. 3 is a cross-sectional view of the present invention taken along a radial cross-section of the cage mounting groove;

FIG. 4 is a schematic cross-sectional view of a graphite head;

fig. 5 is a schematic view of the graphite head and the positioning tool for clamping.

Wherein: 1. a base; 2. a tool body; 21. positioning a groove; 22. a cylindrical surface clamping part; 221. a positioning ring mounting groove; 222. a guide positioning ring; 223. drilling in a guiding way; 224. a positioning ring locking hole; 3. a graphite head; 31. a circular table section; 32. a cylindrical section; 321. a radial bore; 4. and (5) fixing the bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

the graphite head drilling positioning tool in the embodiment, as shown in fig. 1 to 5, includes a base 1, a tool body 2 mounted on the base 1, and a guiding positioning ring 222; the overall cylindrical tool body 2 is provided with a working cavity which is provided with an opening at one end, is horizontally arranged along the axial direction and is used for positioning the graphite head 3 to be drilled; the inner bottom surface of the working cavity of the tool body 2 is provided with a positioning groove 21 for positioning the end part of the circular truncated cone section 31 of the graphite head 3, and the inner side wall of the working cavity of the tool body 2 is provided with a cylindrical surface clamping part 22 for limiting and clamping the cylindrical section 32 of the graphite head 3; the cylindrical clamping part 22 is provided with a positioning ring installation groove 221 for installing a guiding positioning ring 222 in an embedded manner along the circumferential direction of the tool body 2, and the inner ring of the guiding positioning ring 222 protrudes out of the notch of the positioning ring installation groove 221 and can be in close contact with the periphery of the cylindrical section 32 of the graphite head 3; the cylindrical clamping part 22 of the tool body 2 is further provided with a guide drilling hole 223 for the drill to extend into the radial hole 321 of the graphite head 3.

In this embodiment, the circular truncated cone section 31 at one end of the graphite head 3 penetrates through the central hole of the guiding and positioning ring 222 and then is inserted into the positioning groove 21, at this time, the cylindrical section 32 of the graphite head 3 is just in tight fit with the inner ring of the guiding and positioning ring 222, and the end surface positioning of the circular truncated cone section 31 of the graphite head 3 and the positioning and clamping of the cylindrical section 32 are completed at the same time; the radial hole 321 to be machined on the cylindrical section 32 of the graphite head 3 is located just at the bottom of the guide bore 223; at this point, positioning and clamping the graphite head 3 are completed; and this embodiment has the drilling precision of assurance, avoids boring the hole slope, and quick clamping improves production efficiency's beneficial effect simultaneously.

Example 2:

the embodiment is further optimized on the basis of embodiment 1, as shown in fig. 2 and fig. 3, the positioning groove 21 is a truncated cone-shaped groove, and the bottom surface of the truncated cone-shaped groove can be attached to the end surface of the truncated cone section 31 of the graphite head 3 extending into the truncated cone-shaped groove.

This embodiment is setting up constant head tank 21 into round platform type recess, is convenient for fix a position the 31 terminal surfaces of round platform section of graphite head 3 fast.

Other parts of this embodiment are the same as those of embodiment 1, and thus are not described again.

Example 3:

this embodiment is further optimized based on the above embodiment 2, as shown in fig. 1, fig. 2, fig. 3 and fig. 5, the wall surface of the truncated cone-shaped groove is in line contact or surface contact with the wall surface of the truncated cone section 31 of the graphite head 3 extending into the truncated cone-shaped groove.

The wall inclination angle of the truncated cone-shaped groove in this embodiment is consistent with the wall inclination angle of the truncated cone section 31 of the truncated cone-shaped groove into which the graphite head 3 extends, so that the end face positioning of the graphite head 3 can be effectively avoided from being out of order due to shaking, and the accuracy and stability of the end face positioning are facilitated.

The other parts of this embodiment are the same as those of embodiment 2, and thus are not described again.

Example 4:

this embodiment is further optimized based on the above embodiment 1, as shown in fig. 1 to fig. 3, the cylindrical surface clamping portion 22 and the guiding and positioning ring 222 are respectively provided with positioning ring locking holes 224 corresponding in position; after the guiding and positioning ring 222 is installed in the positioning ring installation groove 221, the fixing bolt 4 penetrates through the positioning ring locking holes 224 respectively located in the cylindrical surface clamping portion 22 and the guiding and positioning ring 222 and corresponding in position to fixedly connect the guiding and positioning ring 222 with the middle tool body 2.

This embodiment is through setting up position circle locking hole 224 and fixing bolt 4, with direction position circle 222 fixed mounting in position circle mounting groove 221, the realization is to the location clamping of 3 cylinder sections 32 of graphite head, simple structure practicality be convenient for operate.

Example 5:

the present embodiment is further optimized on the basis of the above embodiment 4, as shown in fig. 1, the number of the guide positioning rings 222 is two, and the two sets of guide positioning rings 222 are respectively disposed on the front and rear sides of the guide drilling 223 along the axial direction of the working cavity.

This embodiment sets up to two sets ofly through the quantity with direction position circle 222 to set up respectively in the both sides of direction drilling 223, improved the stability to the location clamping of the cylinder section 32 of graphite head 3, graphite head 3 atress slip influence drilling accuracy when avoiding drilling.

The other parts of this embodiment are the same as those of embodiment 4, and thus are not described again.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.

Claims

1. The utility model provides a first drilling location frock of graphite which characterized in that: comprises a base (1), a tool body (2) arranged on the base (1) and a guide positioning ring (222); the tool body (2) which is integrally cylindrical is provided with a working cavity which is provided with an opening at one end, is horizontally arranged along the axial direction and is used for positioning the graphite head (3) to be drilled; a positioning groove (21) for positioning the end part of the circular truncated cone section (31) of the graphite head (3) is formed in the inner bottom surface of the working cavity of the tool body (2), and a cylindrical surface clamping part (22) for limiting and clamping the cylindrical section (32) of the graphite head (3) is arranged on the inner side wall of the working cavity of the tool body (2); the cylindrical clamping part (22) is provided with a positioning ring installation groove (221) for installing a guide positioning ring (222) in an embedded mode along the circumferential direction of the tool body (2), and the inner ring of the guide positioning ring (222) protrudes out of the notch of the positioning ring installation groove (221) and can be in close contact with the periphery of the cylindrical section (32) of the graphite head (3); the cylindrical surface clamping part (22) of the tool body (2) is further provided with a guide drilling hole (223) for the drill bit to stretch into for machining the radial hole (321) of the graphite head (3).

2. The graphite head drilling and positioning tool according to claim 1, characterized in that: the positioning groove (21) is a truncated cone-shaped groove, and the bottom surface of the truncated cone-shaped groove can be attached to the end face of a truncated cone section (31) of the truncated cone-shaped groove, wherein the graphite head (3) extends into the truncated cone-shaped groove.

3. The graphite head drilling and positioning tool according to claim 2, characterized in that: the wall surface of the truncated cone-shaped groove is in line contact or surface contact with the wall surface of the truncated cone section (31) of the truncated cone-shaped groove, wherein the graphite head (3) extends into the truncated cone-shaped groove.

4. The graphite head drilling and positioning tool according to claim 1, characterized in that: the cylindrical surface clamping part (22) and the guide positioning ring (222) are respectively provided with positioning ring locking holes (224) with corresponding positions; after the guide positioning ring (222) is arranged in the positioning ring mounting groove (221), the fixing bolt (4) penetrates through the positioning ring locking holes (224) which are respectively positioned in the cylindrical surface clamping part (22) and the guide positioning ring (222) and correspond to the positions of the positioning ring locking holes to fixedly connect the guide positioning ring (222) with the middle tool body (2).

5. The graphite head drilling and positioning tool according to claim 4, characterized in that: the number of the guide positioning rings (222) is two, and the two groups of guide positioning rings (222) are respectively arranged on the front side and the rear side of the guide drilling hole (223) along the axial direction of the working cavity.